鲁班门前弄大斧
lǔ​bān​mén​qián​nòng​dà​fǔ

to show off before an expert

鲁班门前弄大斧 魯班門前弄大斧 lǔ​bān​mén​qián​nòng​dà​fǔ
to show off before an expert
to display one's slight skill in the presence of a master, literally meaning to wield a large axe in front of Lu Ban's door

Cross-References

Has variant